Supramolecular hierarchy among halogen and hydrogen bond donors in light-induced surface patterning

Marco Saccone,Valentina Dichiarante,Alessandra Forni,A. Goulet-Hanssens,G. Cavallo,Jaana Vapaavuori,Giancarlo Terraneo,Christopher J. Barrett,G. Resnati,P. Metrangolo,A. Priimagi

Published 2015 in Journal of Materials Chemistry C

ABSTRACT

Halogen bonding, a noncovalent interaction possessing several unique features compared to the more familiar hydrogen bonding, is emerging as a powerful tool in functional materials design. Herein, we unambiguously show that one of these characteristic features, namely high directionality, renders halogen bonding the interaction of choice when developing azobenzene-containing supramolecular polymers for light-induced surface patterning. The study is conducted by using an extensive library of azobenzene molecules that differ only in terms of the bond-donor unit. We introduce a new tetrafluorophenol-containing azobenzene photoswitch capable of forming strong hydrogen bonds, and show that an iodoethynyl-containing azobenzene comes out on top of the supramolecular hierarchy to provide unprecedented photoinduced surface patterning efficiency. Specifically, the iodoethynyl motif seems highly promising in future development of polymeric optical and photoactive materials driven by halogen bonding.

PUBLICATION RECORD

  • Publication year

    2015

  • Venue

    Journal of Materials Chemistry C

  • Publication date

    2015-01-02

  • Fields of study

    Materials Science, Chemistry

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

CITATION MAP

EXTRACTION MAP

CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

Showing 1-81 of 81 references · Page 1 of 1

CITED BY

Showing 1-70 of 70 citing papers · Page 1 of 1